Volcano Calendar 2019: We're proud to present our 2019 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past few years.

The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.

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The earthquake occurred northeast of Gisborneas at the plate boundary between the Pacific and Australia plates.
It was triggered by an oblique rupture which occurred on either a steep dipping, southwest striking normal fault, or on a shallow dipping, north-northeast striking fault.
The Pacific plate begins its westward subduction beneath the Australia plate at the Kermadec and Hikurangi trenches, 65 km to the east of this event, with a velocity of about 47 mm/yr. The depth, location and focal mechanism of the earthquake all indicate this is most likely an intraplate event within the subducting Pacific slab, rather than being an interplate thrust earthquake on the overlying subduction zone interface.

The Australia-Pacific plate boundary region east of the North Island of New Zealand has a history of large earthquakes both along the plate boundary proper, within the subducting Pacific Plate, and in the overlying Australia plate. Seismic activity is especially high in the Kermadec Islands region to the north. Within 250 km of the September 1, 2016 event, 28 other M 6 and larger earthquakes have occurred over the preceding century. The largest was a M 7.1 event in February 1995, about 45 km to the southwest of the September 1, 2016 earthquake. The 1995 event also occurred as a result of shallow oblique-normal faulting, and is not known to have caused any fatalities or damage. The 1995 M 7.1 earthquake was followed by a M 6.5 aftershock five days later.

The September 1, 2016 event was preceded by a M 5.8 foreshock, approximately 18 hours earlier and 30 km to the north, at a similar depth and with the same faulting mechanism as the subsequent M 7.1 earthquake.

If you felt this quake (or if you were near the epicenter), please share your experience with us and submit a short "I felt it" report.You can use your GPS or device location as well to show where you were during the earthquake. - thank you.

More on VolcanoDiscovery:

17 days volcano trekking: This is one of our most exciting volcano tours! Halmahera, North Sulawesi and the Sangihe Islands are not only very scenic and interesting as well as nearly unspoiled by tourism, but also home to some of the country's most active (and often erupting) volcanoes, inclduing Dukono, Ibu, Lokon, Soputan and Karangetang.

1-3 day excursions: If you're interested in volcanoes, there are a number of excursions you should not miss if you're in the area: hike to the craters of Stromboli volcano, climb Etna volcano, get to know the unique volcanic history of Santorini - some examples of shorter (1-3 days) tours and excursions we offer.

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